UPSC Prelims 2013 · Question 79 of 99

UPSC Prelims 2013 question on E Waste Pollutants

Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?

1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium

Select the correct answer using the codes given below:

  1. 1, 3, 4, 6 and 7 only
  2. 1, 2, 3, 5 and 6 only
  3. 2, 4, 5 and 7 only
  4. 1, 2, 3, 4, 5, 6 and 7
Show answer

Answer: B. 1, 2, 3, 5 and 6 only

Analysis

E-waste from discarded electronic devices commonly releases hazardous heavy metals such as beryllium, cadmium, chromium, mercury, and lead into the environment. These substances are used in circuit boards, batteries, screens, and other electronic components. Heptachlor is a pesticide and plutonium is not a common component of household electronic waste. Therefore, the correct combination includes 1, 2, 3, 5, and 6 only.

Extra UPSC info

Improper recycling of e-waste can contaminate soil, water, and air, posing serious health risks.

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